CN1417596A

CN1417596A - Erecting lens array of resin and its making process

Info

Publication number: CN1417596A
Application number: CN02149807A
Authority: CN
Inventors: 根本浩之; 佐藤史郎
Original assignee: Nippon Sheet Glass Co Ltd
Current assignee: Nippon Sheet Glass Co Ltd
Priority date: 2001-11-01
Filing date: 2002-11-01
Publication date: 2003-05-14
Anticipated expiration: 2022-11-01
Also published as: TWI224209B; CN1266490C; US6982833B2; US20040160675A1; US20030081312A1

Abstract

Spherical or aspherical microlenses are densely and regularly arranged at a prescribed pitch on a resin lens plate manufactured by injection- molding, and the microlenses are arranged having a dense structure of a square (diamond) pattern. At a boundary part between respective microlenses, a groove or a projection is formed along the bisector of a segment drawn between the centers of the microlenses, and a light absorbing film is formed on the groove or the projection. Since a partitioning wall for partitioning an image forming space of adjacent lenses is formed in the groove or the projection part, stray light is effectively removed.

Description

Erecting lens array of resin and manufacture method thereof

Technical field

The present invention relates to erecting lens array of resin, especially at least two pieces of spheres or aspheric small convex lens are by the spacing of setting, be configured in the resin lens plate subtend configuration on the flat board and the erecting lens array of resin that constitutes regularly.The invention still further relates to the manufacture method of this erecting lens array of resin.

Technical background

The record of optical printer etc. write optics with or scanner etc. read the image optical system that adopts in the image transmission device that optical system uses, past is adopted distributed refractive index rod lens row mostly, adopt this lens arrays, can make just as the image optical system very compact.Yet this lens arrays is owing to a plurality of rod lens parts of assortment, the fixing manufacturing of employing resin, and the assortment that is easy to generate lens piece is unequal.The uneven resolution that influences lens arrays of such assortment (for example, resolution 1200dpi in) the equipment, has become visual uneven reason in nearest high image dissection sharpnessization.

In order to suppress the generation of this assortment inequality, can consider to adopt erecting lens array of resin to replace above-mentioned rod lens row.Erecting lens array of resin by the plate resin lens plate that a plurality of lens are formed laminated the realization more than two pieces on the transparency carrier just as image optics is.The resin lens plate is because by resin is injected mould manufacturing, the arrangement precision height of lens has than the feature that is easier to make large component.In addition, also can seamlessly dispose the dense configuration of lens, can make the high lens arrays of light utilization ratio just as imaging.

Yet, above-mentioned resin lens plate, owing to normally form lens on transparency carrier on the method for making of lens, the light rays pass through lens body in addition that relates to imaging is injected the optical system of adjacency, and the problem of diffusion light is arranged.For this reason, propose to bestow photomask in the part except that the substrate surface lens component, or establish the means of dividing plate etc. between laminated resin lens plate, but because the scioptics body produces diffusion light, partly shading is insufficient in addition to cover lens.If on this basis and use dividing plate, can remove basically with the light beyond the light of injecting ejaculation near the angle vertical with lens, but at the resin lens plate with the such structure of peripheral hardware, the whole maximization of lens arrays is undesirable in all application.

In addition, so far, erecting lens array of resin, make liquid crystal image to aspects such as space or the imagings of object direction, owing to be used in combination with liquid crystal display cells, be applicable to optical printer or scanner in order to make erecting lens array of resin, must increase through light quantity with improving resolution.In addition, as so-called line sweep optical system usefulness, in shape also must microsclerization.

Summary of the invention

The object of the present invention is to provide can remove effectively diffusion light, simultaneously applicable to record write optical system with or read the erecting lens array of resin and the manufacture method thereof of the image transmission that optical system uses.

Another object of the present invention is to provide the resin lens that uses in this erecting lens array of resin plate.

Other purposes of the present invention are to provide the image transmission with erecting lens array of resin that addresses the above problem.

The resin lens plate of the present invention's the 1st scheme, it is OBL plate, on the two sides of plate or the middle body of one side have the lens that dispose sphere or the small convex lens of aspheric surface regularly by the spacing of setting to form the zone, the board periphery portion that forms the outside, zone at lens has the zone that does not form lens, these small convex lens, the shape of board plane direction is quadrangle or sexangle, and its configuration makes the direction of distance between centers maximum of small convex lens of adjacency parallel with the long limit of plate.On the resin lens plate, preferably 2 mean lines along the line that connects adjacent small convex lens center form ditch or prominent bar, form the light absorption film on ditch or prominent bar.

The erecting lens array of resin of the present invention's the 2nd scheme overlaps formation with resin lens plate above-mentioned more than 2 pieces.

The record write or read of the present invention's the 3rd scheme is got the image transmission that optical system is used, and is that above-mentioned erecting lens array of resin is contained in the box body, establishes in this box body that the width that forms the sub scanning direction in field along main scanning direction and lens equates or slit in a narrow margin.

The manufacture method of the mould of the present invention's the 4th scheme, in the manufacture method of the mould that when adopting injection moulding to make the lens board that disposes sphere or aspheric small convex lens regularly, uses, comprising: the small convex spherical surface body center with the parent form of the small convex spherical surface body of the resin system of regular configuration on flat substrate is had the operation that the Outboard Sections of the circle at roughly the same center is processed, on the resin in the horizontal chamber after the processing, form the operation of conducting film, metal lining becomes the operation of setting thickness on conducting film, and the parent form demoulding after the metal lining processing makes the operation of mould.

The manufacture method of the resin lens plate of the present invention's the 5th scheme, comprise the mould that uses 2 above-mentioned manufacture method manufacturings make concave spherical surface relatively opposed, each concave spherical surface be fixed on operation in the set of molds (dieset), between opposed mould, establish predetermined gap, between the gap, inject the operation of resin, with mold releasability, the operation of taking out the resin lens plate, and on ditch that forms between the small convex lens on the resin lens plate or prominent bar, form the operation of light absorption film.

The manufacture method of the erecting lens array of resin of the present invention's the 6th scheme is characterized in that, the resin lens plate of the resin lens plate that the above-mentioned manufacture method that contains 1 piece is at least made overlaps the manufacturing lens arrays more than 2 pieces.

Description of drawings

Figure 1A is the planimetric map that constitutes the resin lens plate of erecting lens array of resin of the present invention.

Figure 1B is the outboard profile of resin lens plate.

Fig. 2 A is the figure of the small convex lens configuration of explanation.

Fig. 2 B is the figure of the small convex lens configuration of explanation.

Fig. 3 A is the figure of the small convex lens desired configuration direction of explanation.

Fig. 3 B is the figure of the small convex lens desired configuration direction of explanation.

Fig. 4 A is the partial plan layout that the zone beyond lens and concentrically ringed opening portion forms the resin lens plate of light absorption film.

Fig. 4 B is the partial plan layout that forms the resin lens plate of light absorption film in the field of the certain width of 2 mean lines of the line segment of connection lens center, edge.

Fig. 4 C is the partial plan layout that the part that does not have lens function between lens forms the resin lens plate of light absorption film.

Fig. 5 A is the sectional view along the A-A ' line of Fig. 4 A.

Fig. 5 B is the sectional view along the B-B ' line of Fig. 4 B.

Fig. 5 C is the sectional view along the C-C ' line of Fig. 4 C.

To be expression will form the partial section of 2 pieces of resin lens plates of the fashionable state of resin lens flaggy that the bar of dash forward on ditch, another face processes to Fig. 6 A on the face.

Fig. 6 B is the partial plan layout at the formed ditch of one side of resin lens plate.

Fig. 6 C is the partial plan layout at the formed prominent bar of another side of resin lens plate.

Fig. 7 A is the partial section of 2 pieces of resin lens plates that expression will form the fashionable state of resin lens flaggy of ditch on the two sides.

Fig. 7 B is the partial plan layout of formed ditch on the resin lens plate.

Fig. 8 A is the planimetric map of another routine resin lens plate of expression resin lens plate.

Fig. 8 B is the outboard profile of resin lens plate.

Fig. 8 C is the sectional view along the D-D ' line of Fig. 8 A.

Fig. 9 A is the planimetric map of another routine resin lens plate of expression resin lens plate.

Fig. 9 B is the outboard profile of resin lens plate.

Fig. 9 C is the sectional view along the E-E ' line of Fig. 9 A.

Figure 10 A is the figure that the operation of the parent form be used to make the resin lens board mold is made in explanation.

Figure 10 B is the figure that the operation of the parent form be used to make the resin lens board mold is made in explanation.

Figure 10 C is the figure that the operation of the parent form be used to make the resin lens board mold is made in explanation.

Figure 11 A is Ni mould operation is made in explanation of parent form figure.

Figure 11 B is Ni mould operation is made in explanation of parent form figure.

Figure 11 C is Ni mould operation is made in explanation of parent form figure.

Figure 12 A is resin lens plate operation is made in explanation of injecting molding die figure.

Figure 12 B is resin lens plate operation is made in explanation of injecting molding die figure.

Figure 13 is explanation forms an example of light absorption film method on ditch figure.

Figure 14 is explanation forms another example of light absorption film method on ditch figure.

Figure 15 A is the partial section of resin lens plate.

Figure 15 B is the part of the light absorption film shape that Figure 13 and method shown in Figure 14 form is adopted in expression on the resin lens plate figure.

Figure 16 is the outboard profile with 3 pieces of erecting lens array of resin that overlap and form of resin lens plate.

Figure 17 A is the outboard profile of the resin lens plate before the position when the resin lens plate is overlapped laggard line position and merges merges.

Figure 17 B is the planimetric map of the resin lens plate before the position merges.

Figure 18 A is the outboard profile of the resin lens plate after the position when the resin lens plate is overlapped laggard line position and merges merges.

Figure 18 B is the planimetric map of the resin lens plate after the position merges.

Figure 19 A is the outboard profile of the resin lens plate before the position when the set through hole of bar-shaped anchor clamps insertion two end portions is carried out the position merging merges.

Figure 19 B is the planimetric map of the resin lens plate before the position merges.

Figure 20 A is the outboard profile of the resin lens plate after the position the when through hole that bar-shaped anchor clamps insertion is located at both ends is carried out the position merging merges.

Figure 20 B is the planimetric map of the resin lens plate after the position merges.

The sectional view of another routine resin lens plate that the position when Figure 21 A represents the resin lens plate overlapped merges.

Figure 21 B is the figure of the F portion of enlarged drawing 21A.

Figure 22 A is the planimetric map that adopts the bonding resin lens plate of ultrasonic soldering.

Figure 22 B is by the long side outboard profile of bonding resin lens plate.

Figure 22 C is the sectional view along the G-G ' line of Figure 22 A.

Figure 23 A be the bonding portion zone of resin lens plate be the H part of Figure 22 C bonding before with bonding after amplification sectional view.

Figure 23 B be in the two end portions field of the length direction of resin lens plate bonding before with bonding after amplification sectional view.

Figure 24 A is the outboard profile that side has the erecting lens array of resin of diaphragm structure body state of injecting that is illustrated in erecting lens array of resin.

Figure 24 B is illustrated in to inject the outboard profile that side and emitting side have the erecting lens array of resin of diaphragm structure body state.

Figure 25 A is the planimetric map that is illustrated in the image transmission device that holds the erecting lens array of resin state in the box body.

Figure 25 B is the sectional view along the I-I ' line of Figure 25 A.

Figure 25 C is another routine sectional view of presentation image transmitting device.

Figure 25 D is another other the routine sectional views of presentation image transmitting device.

Detailed Description Of The Invention

With reference to description of drawings embodiment of the present invention.

Erecting lens array of resin of the present invention by more than 2 pieces on the two sides or one side form laminated the forming of resin lens plate driving fit of many small convex lens.In order to realize erecting lens array of resin, must form face by trihedral at least lens just as imaging.

Figure 1A is the planimetric map that constitutes the resin lens plate of resin lens row of the present invention.Figure 1B is the outboard profile of resin lens plate.The resin lens plate adopts injection moulding to make.The material of resin lens plate is the resin of injection moldable, especially ethylene series resin, cyclic olefine resin or norbornene resin.As commercially available resin the ZEONEX (registered trademark) or the ゼオノア (registered trademark) of Japanese Zeon corporate system are arranged, or the ARTON (trade name) of Japanese synthetic rubber (JSR) corporate system, it is characterized in that water absorptivity is low.

The resin lens plate 10 that adopts injection moulding to make, it is microscler oblong-shaped, lens at middle body form the zone, at the length direction (main scanning direction that is equivalent to image transmission) of resin lens plate 10 and direction (sub scanning direction that be equivalent to image transmission) configuration many sphere or the aspheric small convex lens 12 vertical with length direction.Small convex lens 12 form on the two sides of resin lens plate 10.

Outside lens form the zone,, form the above lens of many lens height and adjust at interval with protuberance 14 for the interval each other, summit that makes opposed small convex lens keeps certain.These lens are adjusted at interval with protuberance 14, and in order to prevent resin lens plate 10 in the length direction bending, preferably the long limit along resin lens plate 10 forms.

In addition, outside lens form the zone, the nail trace 16 of the ejector pin formation of injection (mo(u)lding) machine is arranged.This nail trace 16 is the impressions that produce by the nail of releasing formed body in mould for the easy demoulding when injection moulding finishes.

In addition, in the length direction side of resin lens plate 10 (not forming the face of lens) cast gate trace part 18 is arranged.This cast gate trace part 18 is for injecting the trace of the membrane gate that injection-molded resin uses.In the time of long and thin oblong-shaped formed body, establish the big membrane gate of width in the side of length direction, when cast gate injects resin and carries out moulding,, diminish so be out of shape internal stress little, formed body because the same real estate generation type shrinks.

In addition, in the side of resin lens plate 10, fixed part 20 is arranged.By this fixed part 20 and the embedding that is located at the jut on the outside box body, the outside box body of can easily resin lens plate 10 being packed into.Because resin lens plate 10 is rectangles, preferably establishes fixed part 20 in the length direction side of resin lens plate.

The configuration of sphere or aspheric small convex lens 12 shown in Fig. 2 A and Fig. 2 B, becomes the staggered configuration at the direction interconnected lens parallel with the outside of resin lens plate.The shape of the board plane direction of lens is just like dimetric situation shown in Fig. 2 A and the hexagonal situation shown in Fig. 2 B.Fig. 2 A represents to dispose the state of square shape lens by the four directions to assortment densely, and Fig. 2 B represents to dispose by six direction assortments the state of hexagonal configuration lens densely.

Moreover, here so-called four directions is to assortment, be meant assortment at 4 direction configuration lens, make and watch 1 lens attentively, 1 limit of other lenses and each limit of these lens join, and so-called six direction assortments are meant the assortment at 6 direction configuration lens, make and watch 1 lens attentively, 1 limit of other lenses and each limit of these lens join.

Quadrangle need not be illustrated square, can select from comprise rhombus and rectangular parallelogram.Sexangle then is not limited to regular hexagon so long as relative limit is parallel.Moreover any lens configuration not necessarily must be dense structure, also can be the configuration of gapped non-dense structure between lens.But from the angle of transmission light quantity, preferred dense structure.

When online scanning optical system uses such resin lens plate, shown in Fig. 3 A and Fig. 3 B, the length direction of preferred resin lens board, be that the main scanning direction of line sweep optical system is consistent with the direction of the distance between centers maximum of small convex lens.

This is according to following reason.The four directions is under the case of lenses of assortment shown in Fig. 3 A, and lens 80 are with respect to imaging light 81, in the most approaching four directions to the intensity maximum of the diffusion light 83 that takes place of the position of lens 82.At this moment, the configuration lens make main scanning direction become the diagram direction of arrow, promptly in abutting connection with the direction parallel of the distance between centers maximum of lens with square diagonal line, can reduce the influence of 83 pairs of imaging light 81 of diffusion light like this.

The occasion of the lens of six direction assortments shown in Fig. 3 B too, lens 90 relative imaging light 91 are in the intensity maximum of the diffusion light 93 that takes place near the position of the lens 92 of 6 directions.At this moment, also dispose lens and make main scanning direction become the diagram direction of arrow, promptly, can reduce the influence of 93 pairs of imaging light 91 of diffusion light like this in abutting connection with the direction of the distance between centers maximum of lens.

Under the situation as above-mentioned configuration, the four directions because the occurrence positions and the distance between the sweep trace of diffusion light are bigger than the situation of six direction assortments, has the little feature of influence of diffusion light to the situation of assortment lens.Moreover, no matter be the four directions, shown in Fig. 2 A and Fig. 2 B, all can be the configuration of dense structure to the situation of assortment lens, or the situation of six direction assortment lens.Under the situation as dense structural arrangements, small convex lens become square shape lens or hexagonal configuration lens, and as mentioned above, the square shape lens are favourable aspect the influence of diffusion light.And the hexagonal configuration lens are compared with the square shape lens, and are little at the aberration of lens perimeter part, and have the big feature of transmission light quantity.

Form low reflection tunicle on the surface of the resin lens plate 10 of the moulding shown in Figure 1A and Figure 1B.Low reflection tunicle is the film that is used to reduce resin lens plate reflectivity, can adopt the fluorine resin film.

Moreover, also can form nesa coating on the surface of resin lens plate.If can form nesa coating on resin lens plate surface, adjust the current potential of nesa coating, then erecting lens array of resin charged after, can prevent that foreign matter such as toner from sticking on the lens face.At this moment, it is idiostatic most preferably adopting exposure, video picture technology to make nesa coating and the photoreceptor that adheres to toner.As nesa coating,, can have the effect of hydrophilic coating film concurrently if use ITO (tin indium oxide) film.Hydrophilic coating film can improve the wettability to tackifier.

In addition, the surface of the low reflection tunicle that forms on the resin lens plate at the boundary member of the small convex lens of adjacency, is formed for removing the light absorption film (photomask) of diffusion light.

Fig. 4 A is the partial plan layout of the resin lens plate when being illustrated in zone beyond lens and the concentrically ringed opening portion 26 and forming light absorption film 24, and Fig. 4 B is the partial plan layout that is illustrated in the resin lens plate when forming light absorption film 24 backs in the certain width zone of 2 mean lines 22 of the line segment that connects the adjacent lens center and form opening portions 26.And Fig. 4 C is illustrated among Fig. 4 B because the configuration of lens is not dense structure, exists not have a partial plan layout of resin lens plate of situation of part of lens function between lens.

Under the situation of Fig. 4 B and Fig. 4 C, preferably carry out groove or the processing of prominent bar, form light absorption film 24 then thereon along 22 pairs of lens of 2 mean lines.Carry out groove or the processing of prominent bar along 22 pairs of lens of 2 mean lines, form under the situation of light absorption film 24 then in the above, owing to form the dividing plate of distinguishing in abutting connection with the imaging space of lens at groove or prominent bar processing part, in lens and concentrically ringed opening portion 26 zone in addition that Fig. 4 A shows, compare with the situation that forms light absorption film 24, can more effectively remove diffusion light.

Fig. 5 A is the sectional view along the A-A ' line of Fig. 4 A, is the sectional view of lens piece part.Shown in Fig. 5 A, behind the residual opening portion 26, form extra-regional part at the boundary member of small convex lens and lens and form light absorption film 24.Fig. 5 B is the sectional view along the B-B ' line of Fig. 4 B.Between adjacent small convex lens, groove 25 is arranged, form light absorption film 24 in the above.The extra-regional part that forms lens on the preferred resin lens board also is processed into the degree of depth identical with the end of groove 25, removes the back and forms lower curtate 27.Surface at this lower curtate 27 also forms light absorption film 24.And Fig. 5 C is the sectional view along the C-C ' line of Fig. 4 A.When the configuration of lens is not dense structure, shown in Fig. 5 C, ditch portion 25 not only, and do not have the flat 29 of lens function between small convex lens fully by 24 shadings of light absorption film yet.

Ditch 25 between the small convex lens that covered by above-mentioned light absorption film 24 forms extra-regional lower curtate 27 with lens, the part of the light of the inclined light shaft of relative lens can be carried out shading.

Fig. 6 A be the one side of resin lens plate along 2 mean lines that connect the adjacent lens center form ditch, at another side along 2 mean lines that connect the adjacent lens center, the 2 pieces of partial sections that the resin lens flaggy is fashionable that bar processes of dash forward, Fig. 6 B is the partial plan layout at the ditch of the one side formation of resin lens plate, and Fig. 6 C is the partial plan layout at the prominent bar of the another side formation of resin lens plate.Ditch and prominent bar have each other can be chimeric shape, formation light absorption film 24 on ditch.If form ditch in the one side of resin lens plate 10 in this wise, form prominent bar at another side, then,, can remove diffusion light by making ditch and prominent bar chimeric with resin lens plate 10 is laminated when making erecting lens array of resin, can carry out the position merging simultaneously.

In addition, Fig. 7 A is 2 pieces of partial sections that the resin lens flaggy is fashionable that the two sides formed ditch, and Fig. 7 B is the partial plan layout of formed ditch on the resin lens plate.Two sides at resin lens plate 10 forms ditch along 2 mean lines that connect the adjacent lens center, forms light absorption film 24 on ditch.Like this, when the two sides is formed the resin lens plate 10 of ditch and makes erecting lens array of resin after laminated,, can remove diffusion light, can carry out the position simultaneously and merge by the shading wall 23 of thickness below furrow width inserted in the ditches.

Fig. 8 A is the planimetric map of another routine resin lens plate of expression resin lens plate, and Fig. 8 B is the outboard profile of resin lens plate, and Fig. 8 C is the sectional view along the B-B ' line of Fig. 8 A.In the zone, both ends of the length direction of resin lens plate 10, the position adjustment in order to carry out 2 pieces of resin lens plates are overlapped is established protuberance 34 in the one side of resin lens plate, establishes with protuberance 34 at another side and carries out chimeric recess 36.

In addition, also can form outside the zone, establish a plurality of caves, the jog that are used for resin lens plate more than 2 pieces is transferred core, or also can establish the jog that is used to transfer core in the side of resin lens plate at the lens of resin lens plate.

Fig. 9 A is the planimetric map of another routine resin lens plate of expression resin lens plate, and Fig. 9 B is the outboard profile of resin lens plate, and Fig. 9 C is the sectional view along the C-C ' line of Fig. 9 A.In the zone, both ends of the length direction of resin lens plate 10, establish the V-shape notch part 38 that the accent core that carries out between the resin lens plate is used.

In Fig. 8 A and Fig. 9 A, form outside the zone at the lens of resin lens plate 10, establish the adhesive portion 32 that is used for mutual adhering resin lens board along long limit.Adhesive portion 32 is compared with the situation of bonding tabular surface, in order to increase bond area, forms concavo-convex ditch.

Moreover, in Fig. 8 A and Fig. 9 A,, lens shown in Figure 1 do not adjust at interval with protuberance 14 though being shown, also can the formation protuberance such as form between the zone at adhesive portion 32 and lens.

Below, the manufacture method of relevant resin lens plate is described.Here explanation has the small convex lens that are configured to dense structure, forms the manufacture method of the resin lens plate of ditch along 2 mean lines of the line segment that connects the adjacent lens center.

The production process of the parent form that making resin lens board mold is used at first, is described.

[1] parent form is made

(a) making of the parent form of the small convex spherical surface body of assortment

Parent form in the past has the cross sectional shape shown in Figure 10 A, and method for making is the small convex spherical surface body that constitutes by desired size, scheme assortment resin on glass substrate, opens in the flat 11-245266 communique open the spy.Can adopt following operation to make parent form according to this method.

The glass mask that preparation has the sphere concavity to cheat in one side at its surface coated release agent, makes it dry.Then, the epoxy that drips on glass mask is a ultraviolet curable resin.For the resin that launches to drip, on resin, put glass substrate and push.Thereafter, in order to make hardening of resin, irradiation ultraviolet radiation.Behind the hardening of resin,, can obtain the parent form of the prior art of the small convex spherical surface body of assortment on glass substrate by glass mask is carried out the demoulding.

In addition, open flat 7-218702 communique, also can adopt following method to make the parent form of prior art according to the spy.

The thermoplastic material layer of laminated institute required thickness and middle layer and photoresist layer on substrate.Adopt photoetching process that the photoresist layer is reserved the circular pattern with the diameter that requires, the figure formation of removing other parts.Should the circle photoresist as mask, the middle layer is removed in etching.Adopt the reactive ion etching agent to remove thermoplastic resin with this middle layer as mask, then on substrate, form cylindric resin bed.If removing the middle layer heat-treats, the resin layer surface distortion can obtain the convex spherical surface body on substrate.

(b) Laser Processing

Then, shown in Figure 10 B, vertical 2 mean lines of the line segment at the adjacent small convex spherical surface body center of the above-mentioned parent form of edge connection, scan edge limit irradiating laser.Figure 10 B represents the situation of the dense structure that adjacent small convex spherical surface body is joined each other.At this moment, along the valley line irradiating laser of so-called resin bed.Therefore, partly remove resin, shown in Figure 10 C, be produced on the parent form 40 of the paddy portion formation ditch between small convex spherical surface body.

The degree of depth of ditch, shown in the part enlarged drawing of Figure 10 C, the lowest part (valley line) of the parent form 40 that ditch processing is preceding is defined as benchmark, is more than the 0 μ m, below the 100 μ m.Resin bed can be removed fully up to substrate, can also a residual part.When the depth ratio 0 μ m of ditch was shallow, light-proofness was insufficient, and when darker than 100 μ m, mould is difficult to moulding in the operation of back.When being P with the spacing between spherical surface body, furrow width is below the 0.2P.Width is during greater than 0.2P, and the live part of the lens of the lens arrays of manufacturing reduces, and sees through light quantity and reduces.Among the figure, though that the side of ditch portion illustrates is vertical with the bottom surface, in fact when the injection moulding of subsequent handling, in order to make the moulding product easily and mold releasability, there is the tapering of opening slightly towards the top preferred ditch portion side.And the bottom of preferred ditch is a uneven surface.

Moreover shown in Figure 10 C, spherical surface body forms the small convex spherical surface body of outer edge in zone and spherical surface body and forms extra-regional boundary portion and also process similarly irradiating laser with ditch and process.At this moment, spherical surface body forms extra-regional part also shown in the part enlarged drawing, preferably be processed into spherical surface body between the identical degree of depth of ditch.

Actual manufacturing procedure is used the KrF excimer laser (wavelength 248nm) that is suitable for epoxy resin processing as laser.Processing conditions is set at: output power 230mJ, the about 0.5J/cm of energy density ², oscillation frequency 150Hz.

Irradiation is shrunk to the some beam of diameter 40 μ m, along to the periphery of the diamond shaped of 1 of the small convex spherical surface body element of the dense configuration of assortment job step being moved by the four directions, and the flying spot bundle, thus form ditch.The sweep velocity of laser beam is 250 μ m/s.

Above-mentioned processing during the residual resin of not removing, must be carried out the processing of removing of cull again after initial ditch processing near the intersection of ditch.In addition,, the Ar gas nozzle is set near the beam illuminated portion, makes the gaseous diffusion of the resin of generation in order to prevent the adhesion again of resin.

Use laser as processing, aspect excimer laser, except that KrF, can also use ArF (wavelength: 193nm), XcCl (wavelength: 308nm), XcF (wavelength: 351nm) etc.In addition, except that excimer laser, also can use the 3rd higher hamonic wave (wavelength: 355nm), the 4th higher hamonic wave (wavelength: 266nm) of Nd-YAG laser.

In addition, the material of machined object also can be can be with the ultraviolet light material processed of KrF excimer laser etc.Except that epoxy resin, also have polyimide, polyester, polycarbonate, polyurethane, polysulfones, PET (polyethylene terephthalate) etc.

Ditch to small convex spherical surface body periphery forms, dwindle into a little light beam as above-mentioned irradiation, describe according to ditch formation graphics driver sample grade or with ray scanning and stage driving combination, but also can be in the way of laser radiation optical system, insert the mask of the ditch shape of making, shine processing by the shape of reduced projection on the machined surface of dielectric multilayer film or metal (stainless steel, chromium etc.).Perhaps, making need be carried out the small convex spherical surface body integral body of ditch processing, or makes the mask of its a part of ditch shape, can once irradiating, and also can separately shine and process.

Moreover, during by the small convex spherical surface body of staggered configuration square shape, can form Zone Full linearity landform grooving in spherical surface body, but during by the small convex spherical surface body of staggered configuration hexagonal configuration, owing to can not form Zone Full linearity landform grooving in spherical surface body, the scanning of the laser in the ditch processing is complicated slightly.

In addition, the assortment in length and breadth of spherical surface body though form ditch on 2 mean lines of the line segment that links the spherical surface body center, is not vertical 2 mean lines at interval not simultaneously, and ditch does not meet at right angles with 2 mean lines and intersects.But can similarly carry out ditch processing.

In addition, as other job operation, can suitably adopt reactive ion etching, ion beam milling, sand blasting, cut.

Below, the operation that the parent form 40 that adopts above operation to make is made Ni (nickel) moulds is described.

[2] making of Ni mould

(a) film forming of conducting film

Shown in Figure 11 A, on the resin 37 of parent form 40, adhere to conducting film 42.Conducting film 42 for example can adopt, and the chemical plating of Ni forms.

(b) Ni Mold Making

Then, shown in Figure 11 B, on conducting film 42, plate Ni.This plating is following to carry out.Promptly in the electrolytic tank of filling electrolytic solution (Ni electroplate liquid),, remain on suitable temperature with heater heats electrolytic solution (Ni electroplate liquid).And, will intend being connected by the parent form 40 of plating thing with the cathode side conduct at the Ni sheet of anode-side electro-deposition (plating).After the energising, the Ni of anode-side dissolving is separated out at cathode side.Its result forms Ni coating 46 on the conducting film 42 of parent form.The recess of ditch shape is also filled by Ni.The rigidity of the mould of thickness in order to ensure as injection moulding time of plating Ni is set more than the 0.3mm.

(c) demoulding and periphery processing

Then, shown in Figure 11 C, will plate Ni46 and carry out the demoulding.Ni mould after the demoulding forms prominent bar corresponding to the ditch shape recess of parent form.In order to be installed in the set of molds as die for injection molding, cutting surface, periphery processing is carried out at cutting angles etc.

In above embodiment, make parent form by glass mask, make the Ni mould by this parent form.The reason of making the Ni mould through such operation is that such mould is compared as mould with direct employing glass mask, can make the resin lens plate repeatedly.Yet,, also can adopt Laser Processing between the lens on the resin lens plate of end article, to form ditch with this glass mask as mould use resin lens plate if do not consider a large amount of productivitys.

Below, the operation that adopts the die for injection molding making resin lens plate of being made by above operation is described.

[3] injection moulding

(a) mould is installed

Shown in Figure 12 A, 2 Ni moulds are opposed, the picture surface opposite is installed in respectively in the module (there be not diagram).Mould on one side 50 is fixing, and the mould 52 of another side is mounted to movably.In 2

moulds

50,52, the Ni mould that prominent bar is arranged that uses aforementioned operation to make, another uses the not mould of the prior art of prominent bar.If need, also can both be the mould of the prominent bar of band.Under any situation, the surface is sheared tolerance (comprising the rotation of picture surface) with inner core and is ± 50 μ m, and the tolerance clearance between 2 moulds is ± 50 μ m.Regulate the installation site of movable side mold 52, make it to reach in these tolerances.

(b) injection moulding

In the gap of 2

moulds

50,52 of installing like this, inject transparent moulding resin 54.Moulding resin is the resin of injection moldable.

Resin injection shown in Figure 12 B, is carried out the demoulding with mould after finishing, and takes out the resin lens plate 56 of moulding.

Like this, can make the resin lens plate that forms ditch by the four directions to the small convex lens of the dense configuration of assortment, along 2 mean lines of the line segment that connects small convex lens center repeatedly.

At last, the ditch of the 2 mean lines formation of the line segment at the small convex lens of the connection center, edge on the resin lens plate partly forms the light absorption film.

Above embodiment, though the injection moulding two sides forms the resin lens plate of small convex lens, only when one side was formed with the resin lens plate of small convex lens, the mould that makes a side was the smooth sheet metal that does not have the concavity hole of sphere.For example, can become the Ni plate.

Below, illustrate relevant in method along formation light absorption film on the formed ditch of 2 mean lines that connects small convex lens center.

Figure 13 is explanation forms an example of light absorption film method on ditch figure.As shown in figure 13, outside lens formation field, form the ink tank 17 than ditch depth along the long limit of resin lens plate 10, black ink 15 here drips.Then, resin lens plate 10 is tilted towards short side direction, black ink 15 is flowed, utilize to import black ink 15 in the ditch of capillarity between lens, become the light absorption film.

Figure 14 is explanation forms another example of light absorption film method on ditch figure.As shown in figure 14, also can establish earth embankment shape part 19 along the long limit of resin lens plate 10 outside lens form the zone, printing ink here drips.

Figure 15 A is the partial section of resin lens plate.Figure 15 B is the figure of the part of the expression shape that adopts the light absorption film that Figure 13 and method shown in Figure 14 form on the resin lens plate.Among Figure 15 B, the 13rd, the ink flow implantation site.

Adopt above-mentioned method, do not need to form the operation of printing that the light absorption film uses, figure formation etc.Moreover, in order to improve the flowability of printing ink, also upgrading can be carried out in surface in the ditch etc.In addition, can suitably select the viscosity of printing ink, the diameter of black particles etc.

In addition, also can on the whole surface of lens board, be coated with the coating of carbon containing, before the coating drying, adopt the method wipe small convex lens top coating etc. to remove, on ditch, form the light absorption film.

In addition, the light absorption film also can be on the resin lens plate, lens form the extra-regional zone that sees through the imaging of image planes light useless and form.Preferably cover the light useless to imaging as far as possible.

The surface of resin lens plate shown in Fig. 4 A, also can form the symbol 30 (shape is not limited to cross, also can be hollow) that exposes the position when making light absorption film 24 film forming and use.Fig. 4 A, the 28th, lens boundary.

Moreover, forming outside the zone at the lens of resin lens plate, the zone that the imaging of image planes light useless is seen through reduces being reflected into purpose when forming the light absorption film, is preferably uneven surface or small male and fomale(M﹠F).

In addition, when the material of the low reflection tunicle that forms on the surface of resin lens plate was fluororesin, also fluorine system preferably of the material of formed light absorption film above it was because can improve adaptation.

Erecting lens array of resin of the present invention, as mentioned above, the resin lens plate that will be more than 2 pieces forms the light absorption film overlaps, and the optical axis of each small convex lens of above-mentioned resin lens plate is transferred core, each resin lens plate is adhesively fixed forms.

Figure 16 is the outboard profile that 3 pieces of resin lens plates overlap the erecting lens array of resin that forms.

With regard to the resin lens plate, 3 pieces resin lens plate all can use as above-mentioned that make, form the resin lens plate 10 of light absorption film along 2 mean lines, the resin lens plate of a part also can use as above-mentioned make, the resin lens plate 10 that forms the light absorption film along 2 mean lines.If a large amount of lens faces with the film formed dividing plate of light absorption that use see through light quantity and reduce, and when using on a small quantity, residual sometimes a part of diffusion light.Number removing and the equilibrium decision of transmitting light quantity with the lens face in light absorption next door that film forms by diffusion light.

During coincidence, push rod trace 16 and film gate trace portion 18 when utilizing moulding shown in Figure 1 arrange.By making push rod trace 16 or film gate trace portion 18 be same direction, the resin lens plate is overlapped, make the combination that forming direction is an equidirectional easily.

When 2 pieces of resin lens plates are overlapped, at first carry out simple position and merge.The situation of the resin lens plate shown in Fig. 8 A, Fig. 8 B, Fig. 8 C, chimeric by formed protuberance 34 with recess 36, adjustable position.Under the situation of the resin lens plate shown in Fig. 9 A, Fig. 9 B, Fig. 9 C, can adjust the position by between a pair of cylindric anchor clamps with rigidity, embedding the V-shape breach.Also can make position consistency the outside of resin lens plate as benchmark.The position consistency of long resin lens plate, owing to cause dislocation easily at length direction, so preferably in fixed position, length direction two ends.Breach not necessarily must be a V-shape, also can be U font etc.

Figure 17 A is the outboard profile of the resin lens plate before the position when resin lens plate shown in Fig. 9 A is overlapped laggard line position and merges merges.Figure 17 B is the planimetric map of the resin lens plate before the position merges, and Figure 18 A is the outboard profile of the resin lens plate after the position merges, and Figure 18 B is the planimetric map of the resin lens plate after the position merges.

Shown in Figure 18 A and Figure 18 B, resin lens plate shown in Fig. 9 A is being overlapped, embed breach at a pair of 33 of anchor clamps and carry out the position when determining with rigidity, warpages take place in resin lens plate 10 sometimes.At this moment, shown in Figure 19 A, Figure 19 B, Figure 20 A, Figure 20 B, set up through hole separately, in the hole, insert bar-shaped anchor clamps 35, length direction is applied tension force carry out the position merging at the length direction both ends of long resin lens plate.

Figure 19 A inserts the outboard profile that carries out the resin lens plate before the position of position when merging merges in the set through hole in length direction both ends of resin lens plate with bar-shaped anchor clamps; Figure 19 B is the planimetric map of the resin lens plate before the position merges.Figure 20 A is the outboard profile of the resin lens plate after the position merges, and Figure 20 B is the planimetric map of the resin lens plate after the position merges.

The sectional view of other routine resin lens plates that the position when Figure 21 A is the coincidence of expression resin lens plate merges; Figure 21 B is the figure of the F part of enlarged drawing 21A.Short side direction both ends at long resin lens plate 10, establish 1 semi-cylindrical (semi-cylindrical form) protuberance 39 in the one side of resin lens plate 10, establish 2 semi-cylindricals (semi-cylindrical form) protuberance 47 at another side, when resin lens plate 10 overlaps each other, contact the method for fixing by making between 1 side and 2 the semicolumn of semicolumn, carry out the position and merge.

In addition, the position when the resin lens plate overlaps merges, as shown in Figure 6A, also can form ditch along 2 mean lines that connect the lens center in the one side of resin lens plate, along the dash forward processing of bar of 2 mean lines that connect the lens center,, carry out the position merging at another side by making ditch and prominent bar chimeric.

In addition, shown in Fig. 7 A, also can be on the two sides of resin lens plate, form ditch along 2 mean lines that connect the lens center, when the resin lens plate overlaps each other,, carry out the position and merge by being shading wall below the furrow width sandwiching thickness between plate.

In addition, also can be contained in inside dimension is to carry out the position in above band shape of resin lens plate physical dimension or the platy structure thing to merge or fix.In addition, fix, carry out the position between the resin lens plate that constitutes more than 2 pieces and merge by pushing from opposition side with spring etc., also can making with membrane gate trace portion to pushing ejector pin with the long limit of membrane gate trace portion opposition side.

Bonding between the resin lens plate is to carry out at adhesive portion 32 coating binders shown in Fig. 8 A or Fig. 9 A.

Bonding can not guarantee cohesive force enough between resin lens the time what utilize adhesive portion 32, form also coating binder of extra-regional concavo-convex fitting portion, adhering resin lens board at the lens of resin lens plate.For example, carry out bonding at protuberance shown in Fig. 8 B 34 and recess 36 also coating binder.

Moreover, but between only bonding concavo-convex fitting portion, resin lens plate during mechanical fixation, also can just fix by the bonding of concavo-convex fitting portion.

The material of tackifier for the resin lens plate on the similar material of tunicle that is covered.For example, the material of the low reflection tunicle that forms on the surface of resin lens plate is a fluorine resin, and the material of the light absorption film of Xing Chenging also is a fluorine when being in the above, and the material of preferred adhesives also is that fluorine is, this is in order to improve adaptation.

Tackifier in order to keep near the lens apex contact each other, uses the tackifier that has sclerosis to shrink when being adhesively fixed opposed 2 pieces of resin lens plates.The height of adhesive portion 32 is identical with the height of lens or under it, and when tackifier shrank, the interval between the resin lens plate was adjusted with the protuberance butt joint at interval and determined by lens shown in Figure 1.Do not form lens and adjust at interval when using protuberance, the top of scioptics contact and interval between decision resin lens board.In addition, tackifier uses the photo-hardening product.Because the tackifier by heat hardening is after transferring core fixedly the time, because of distortion produces dislocation, so be undesirable.In addition, in order to reduce scattering of light, the tackifier of preferred black.

In addition, bonding between the resin lens plate also can be without tackifier, and uses ultrasonic fusing.Figure 22 A is the planimetric map that adopts the bonding resin lens plate of ultrasonic fusing, and Figure 22 B is the long side outboard profile of bonding resin lens plate, and Figure 22 C is the sectional view along the G-G ' line of Figure 22 A.

In addition, Figure 23 A be as before bonding in the H of the subregional Figure 22 C of the resin lens plate adhesive portion part with bonding after amplification sectional view.At this moment, shown in Figure 23 A, establish big triangle projection 41 at the adhesive portion subregion of a side resin lens plate, establish little triangle recess 49 at the opposed adhesive portion subregion of the opposing party's resin lens plate, triangle projection 41 is bestowed the ultrasound wave fusion, by triangle projection 41 and triangle recess 49 consistent triangularity shapes, adhering resin lens board.

In addition, Figure 23 B be before the zone, both ends of resin lens plate length direction bonding with bonding after amplification sectional view.Make the degree of depth of aspect ratio recess 45 of the protuberance 43 that length direction both ends zones forms higher, by protuberance 43 is bestowed the ultrasound wave fusion, the consistent and adhering resin lens board of the shape that makes protuberance 43 and recess 45.

When adopting ultrasonic fusing adhering resin lens board, do not need hydrophilic coating film formation, tackifier painting process etc.

Between the resin lens plate, in order mechanically to fix opposed resin lens plate, also can form regional peripheral hardware many places through hole at the lens of resin lens plate, inserting solder bar welds fixing, in order mechanically to fix opposed resin lens plate, also can form regional peripheral hardware jog, fix, clamp is not exposed with clamp at the lens of resin lens plate.

In addition, in order more effectively to remove diffusion light, when the resin lens plate overlaps each other, also can between the resin lens plate, sandwich the film that is used to remove diffusion light.

This film can adopt that optical transmittance is big, film surface is provided with and the film of the light absorption of the opening of lens assortment spacing basically identical printing, can also adopt optical transmittance little, be provided with the film with the opening cave of lens assortment spacing basically identical.

In addition, light incident side and/or emitting side at the formed above-mentioned erecting lens array of resin of laminated resin lens plate, in order to remove diffusion light,, can have the diaphragm structure body that forms substantially parallel with lens axis as distinguishing the dividing plate that adjacent lens becomes image space.

Figure 24 A is the outboard profile of the erecting lens array of resin of state with aforementioned barriers structure 44 of the light incident side that is illustrated in erecting lens array of resin, and Figure 24 B is illustrated in the outboard profile of erecting lens array of resin that light incident side and exiting side have the state of aforementioned barriers structure 44.

In the line sweep optical system that image transmission device is used, to length direction, i.e. the diffusion light of main scanning direction inclination becomes problem.Here, above-mentioned diaphragm structure body 44 as long as the length direction of erecting lens array of resin is had shade function, just can.

As the example of such diaphragm structure body, the structure that makes thin plate curtain shape parallel with vertical direction, that uniformly-spaced arrange is arranged, the thin plate that thin plate uses antireflections such as metal or resin sheet surface being formed the light absorption tunicle to handle.

As the example of other diaphragm structure bodies, the means of the length direction restriction of pair erecting lens array of resin through angle of visibility are arranged.The light control film of the incident light beyond selection of configuration ground scattering or the absorption special angle scope, making the confined direction of angle of visibility is the lens arrays length direction.The making of light control film is to carry out bondingly with transparent resin and light absorption resin are laminated, is being cut into the thickness of setting with laminated direction vertical direction.But also being not limited thereto, for example, also can be as the liquid crystal of orientation, contains the resin molding of the molecule that is orientated by certain orientation etc.

Figure 25 A is illustrated in the planimetric map that the record write or read is got the image transmission of the state that erecting lens array of resin is housed in the box body of the image transmission that optical system uses, and Figure 25 B is the sectional view along the I-I ' line of Figure 25 A.After making the jut of establishing on fixed part that the resin lens panel area establishes and the box body chimeric, erecting lens array of resin is contained in the box body.By with around the box body covering resin erecting lens array, can suppress inoperative light of imaging and outer scattered light by object point (light source) scioptics object-point, the inwall of box body is carried out the light absorption processing.

In addition, in order to remove by the object point scioptics to the inoperative light of the imaging of picture point, shown in Figure 25 A and Figure 25 B, on box body 51, at lens and resemble between face along main scanning direction, slit if (or aperture) 48, but the width in slit 48 will equate or narrower with the width (width of sub scanning direction) that lens form the zone.

The conductor of box body 51 usefulness metals etc. forms, and in addition, preferably forms conductive film on the surface of box body 51, gives electric conductivity, can also adjust the current potential of conductor and conductive film.Remain on idiostatic level by current potential and the photoreceptor that makes conductor and conductive film, can prevent that toner is close, prevent that toner from sticking on the erecting lens array of resin.

In addition, also can cover the slit, shown in Figure 25 C, also can establish opening portion, cover opening portions with the transparent member 53 of the glass of printed slot 48 etc. at box body 46 upper edge main scanning directions with the transparent member of glass etc.By covering slit or opening portion, can prevent that toner from sticking on the erecting lens array of resin with transparent member.

In addition, erecting lens array of resin also can have the diaphragm structure body at light incident side and/or exiting side.Figure 25 D is illustrated between erecting lens array of resin and the slit, in order to interdict the light to the main scanning direction inclination, establishes the state of above-mentioned light control film 55 as seeing through the angle of visibility limiting means.

Claims

1. resin lens plate, it is rectangular plate, have: on the two sides of plate or the middle body of the one side lens that dispose sphere or the small convex lens of aspheric surface regularly by the spacing of setting form the zone and do not form the zone of lens at the board periphery portion that lens form the outside, zone, the shape of the board plane direction of these small convex lens is quadrangle or sexangle, and its configuration makes parallel with the long limit of plate with the direction of the distance between centers maximum of adjacent small convex lens.

2. the described resin lens plate of claim 1 is characterized in that, aforementioned small convex lens are with dense structural arrangements.

3. the described resin lens plate of claim 1 is characterized in that, the resin of the injection trace of the resin when plate one side's long side lateral parts is provided with as injection moulding injects the cast gate trace.

4. the described resin lens plate of claim 1 is characterized in that, is provided with the fixture of assembling usefulness at the long side lateral parts of plate.

5. the described resin lens plate of claim 1 is characterized in that, the adjustment lens protuberance of usefulness is at interval established in the zone outside aforementioned lens form the zone along the long limit of plate.

6. the described resin lens plate of claim 1 is characterized in that, forms the zone in the zone outside at aforementioned lens, establishes highly the identical or bonding portion below it of height with aforementioned small convex lens along the long limit of plate.

7. the described resin lens plate of claim 1 is characterized in that, establishes protuberance in the one side at plate length direction both ends, same position at another side is established recess, the degree of depth of the aspect ratio aforementioned recess of aforementioned protuberance is little, and aforementioned protuberance is similar to recess shapes, can be chimeric each other.

8. the described resin lens plate of claim 1 is characterized in that, establishes barbed portion at the length direction both ends of plate.

9. the described resin lens plate of claim 1 is characterized in that, forms nesa coating on the plate surface, can adjust the current potential of nesa coating.

10. the described resin lens plate of claim 1 is characterized in that, forms the light absorption film at the boundary member of the aforementioned small convex lens of adjacency.

11. the described resin lens plate of claim 1 is characterized in that, forms the light absorption film in the zone along the certain width of 2 mean lines of the line segment that connects adjacent aforementioned small convex lens center.

12. the described resin lens plate of claim 1 is characterized in that, 2 mean lines formation ditch or prominent bar along the line segment that connects adjacent aforementioned small convex lens center form the light absorption film on aforementioned ditch or prominent bar.

13. the described resin lens plate of claim 1, it is characterized in that, 2 mean lines along the line segment that connects adjacent aforementioned small convex lens center form ditch, utilize capillarity to form the light absorption film that is made of the black ink that imports in the aforementioned ditch on aforementioned ditch.

14. the described resin lens plate of claim 1, it is characterized in that, form ditch in the one side of plate along 2 mean lines of the line segment that connects adjacent aforementioned small convex lens center, form prominent bar at another side along 2 mean lines of the line segment that connects adjacent aforementioned small convex lens center, and aforementioned ditch and prominent bar be each other can be chimeric shape, and on aforementioned ditch, form the light absorption film.

15. the described resin lens plate of claim 1 is characterized in that, 2 mean lines on the two sides of plate along the line segment that connects adjacent aforementioned small convex lens center form ditch, and form the light absorption film on ditch.

16. claim 14 or 15 described resin lens plates is characterized in that, the aforementioned lights resorbable membrane is to utilize capillarity to be made of the black ink that imports in the aforementioned ditch.

17. erecting lens array of resin is characterized in that, with each described resin lens plate coincidence of claim 1～15 more than 2 pieces.

18. erecting lens array of resin is characterized in that, the described resin lens plate of claim 14 more than 2 pieces is overlapped by the chimeric mutually mode of aforementioned ditch and prominent bar.

19. erecting lens array of resin is characterized in that, with the described resin lens plate of claim 15 more than 2 pieces, by thickness is overlapped in the mode that the shading wall below the furrow width is inserted on the aforementioned ditch.

20. the described erecting lens array of resin of claim 17 is characterized in that, light incident side and/or exiting side be useful on remove diffusion light, as the dividing plate of the one-tenth image space of distinguishing adjacent lens, and the diaphragm structure body that form parallel roughly with lens axis.

21. the described erecting lens array of resin of claim 20 is characterized in that, the aforementioned separator plate structure be parallel and vertical with respect to the lens axis direction with the lens arrays length direction, by the structure of uniformly-spaced arranging a plurality of tabular thin plates.

22. the described erecting lens array of resin of claim 17 is characterized in that, in light incident side and/or exiting side, be useful on remove diffusion light see through the angle of visibility limiting means.

23. the described erecting lens array of resin of claim 22, it is characterized in that the aforementioned angle of visibility limiting means that sees through is optionally scattering or the light control film that absorbs special angle scope incident light in addition, configuration aforementioned lights controlling diaphragm, making the confined direction of angle of visibility is the lens arrays length direction.

24. the described erecting lens array of resin of claim 17, it is characterized in that, the aforementioned resin lens board is overlapped, be located at ejector pin trace resin lens plate surface, that when injection moulding finishes, produce from mould or be same direction as the resin injection cast gate trace of the injection trace of injection-molded resin by ejector pin thereby make.

25. the record write or read is got the image transmission device that optical system is used, it is characterized in that, the described erecting lens array of resin of claim 17 is packed in the box body, in aforementioned box body, establish the identical or narrower slit of sub scanning direction width that forms the zone with lens along main scanning direction.

26. the described record write or read of claim 25 is got the image transmission device that optical system is used, and it is characterized in that, forms conductive film on the surface at least of aforementioned box body, the feasible current potential that can adjust aforementioned conductive film.

27. the described record write or read of claim 25 is got the image transmission device that optical system is used, and it is characterized in that, covers aforementioned slit with transparent member.

28. the described record write or read of claim 25 is got the image transmission device that optical system is used, and it is characterized in that the aforementioned resin erecting lens array is contained in the box body, makes the fixed part that is located at around the aforementioned resin lens board chimeric with the jut that is located on the aforementioned box body.

29. the described record write or read of claim 25 is got the image transmission device that optical system is used, it is characterized in that, between aforementioned slit and erecting lens array of resin, the light control film of the incident light beyond scattering selectively or the absorption special angle scope, configuration aforementioned lights controlling diaphragm, making the confined direction of angle of visibility is main scanning direction.

30. the manufacture method of mould is characterized in that comprising in the manufacture method of the mould that uses when adopting injection moulding to make the lens board that disposes sphere or the small convex lens of aspheric surface regularly:

To having the operation of processing with the Outboard Sections of the circle at the same substantially center, aforementioned small convex spherical surface body center that is configured in the parent form that the small convex spherical surface body of resin system is arranged on the flat-shaped substrate regularly,

On the resin of the aforementioned parent form after the processing, form the operation of conducting film,

On aforementioned conducting film, press the operation of the thickness metal lining of setting,

Parent form after metal behind the aforementioned plating and the aforementioned processing is carried out the molded operation that gets mould of film.

31. the manufacture method of the described mould of claim 30 is characterized in that, the shape of the board plane direction of aforementioned small convex lens is quadrangle or sexangle, and its configuration makes parallel with the long limit of plate with the direction of the distance between centers maximum of adjacent small convex lens.

32. the manufacture method of mould is characterized in that, in the manufacture method of the mould that uses when adopting injection moulding to make the lens board that disposes sphere or the small convex lens of aspheric surface regularly, comprising:

Form the operation of the processing of ditch or prominent bar along the 2 mean lines parent form that is configured in the small convex spherical surface body of resin system on the flat-shaped substrate regularly, that connect the line segment at adjacent small convex spherical surface body center,

Form the operation of conducting film on the resin of the aforementioned parent form after being processed to form ditch or prominent bar,

The metal of aforementioned plating and the parent form after the aforementioned processing are carried out the operation that the demoulding makes mould.

33. the manufacture method of the described mould of claim 32 is characterized in that, the shape of the board plane direction of aforementioned small convex lens is quadrangle or sexangle, and its configuration makes parallel with the long limit of plate with the direction of the distance between centers maximum of adjacent small convex lens.

34. the manufacture method of claim 31 or 33 described moulds is characterized in that, aforementioned small convex lens are by dense structural arrangements.

35. the manufacture method of claim 31 or 33 described moulds is characterized in that, aforementioned processing adopts laser to carry out.

36. the manufacture method of resin lens plate is characterized in that, comprises following operation:

The mould of the described manufacture method manufacturing of claim 31, with do not carry out processed mould and be installed in respectively in the set of molds, make the opposed Face to face operation of concave spherical surface,

Between opposed mould, establish predetermined gap, in aforementioned gap, inject the operation of resin,

The operation that aforementioned mould is carried out the demoulding, takes out the resin lens plate,

Has the operation that roughly forms the light absorption film with the small convex lens center on the aforementioned resin lens board of being configured on the part of having processed of the Outboard Sections of the circle at same center.

37. the manufacture method of resin lens plate is characterized in that comprising:

The mould of the described manufacture method manufacturing of claim 31, with do not have the smooth mould of concave spherical surface to be installed in respectively in the set of molds, make the opposed Face to face operation of concave spherical surface and tabular surface,

38. the manufacture method of resin lens plate is characterized in that comprising:

Be installed in respectively in the set of molds the mould of the described manufacture method manufacturing of claim 33, with unprocessed mould, make the opposed Face to face operation of concave spherical surface,

On ditch that forms between the small convex lens on the aforementioned resin lens board or prominent bar, form the operation of light absorption film.

39. the manufacture method of resin lens plate is characterized in that comprising:

The mould of the described manufacture method manufacturing of claim 33 with there is not the smooth mould of concave spherical surface to be installed in respectively in the set of molds, make the opposed Face to face operation of concave spherical surface and tabular surface,

40. the manufacture method of resin lens plate is characterized in that comprising:

The mould that uses the described manufacture methods of two claims 33 to make makes concave spherical surface opposed Face to face and be installed in operation in the set of molds respectively,

Aforementioned mould is carried out the demoulding, takes out the operation of resin lens plate,

41. the manufacture method of erecting lens array of resin is characterized in that, the resin lens plate more than two pieces that will contain the resin lens plate that the described manufacture method of each of at least 1 piece of claim 36～40 makes overlaps to make lens arrays.